All great advice,
I'd like to keep all of the boxes (except FOV's) for obvious resale value they secure associated with my collection.
It's a given that I'll keep the KC boxes because they offer the maximum resale value today. My plan was also to keep the boxes on selected sets manufactured by the other companies especially some of the vehicle, artillery and armor sets.
However, I am severely limited by space since most So. California homes DO NOT have attics or basements for storage purposes. Paying for self-storage (another good idea) fees over time will erode the appreciation usually experienced by collectors therefore rendering this unfeasible option.
So you see my dilemma. Yes I know I could move out of state and believe me that has crossed my mine more than once.
Carlos